compatibility issue.

on line 194:
replace

``` scala
def RUN() = gotoLine(lines.keys.toList.sort((l,r) => l < r).first)
```

with

``` scala
def RUN() = gotoLine(lines.keys.toList.sortWith((l, r) => l < r).head)
```

I believe on Scala 2.10+ (that I have tested) the sort definition is not available anymore.
